名词
中文翻译：积极传播者
同义词：
['positive propagator', 'positive transmitter']
例句：
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1. The positive carriers are responsible fordistributing the virus throughout the population.
这些积极传播者负责将病毒在整个人群中传播。
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2. The positive carriers were foundto be more likely to transmit the diseasethan the negative ones.
研究发现，阳性携带者比阴性携带者更有可能传播疾病。
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3.The positive carriers were monitored closelyto prevent further spread of the virus.
对阳性携带者进行了密切监控，以防止病毒进一步传播。